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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-14 14:42:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-14 14:42:53 -0800
commit0beb58783f2168354e2b5297af45fc7db70adf12 (patch)
tree4debaf4f276990adf1892b7efe57edd344367464 /include
parent6a57d104c8cb5b6adad6784b4ce6e2f7f9961a3a (diff)
parenteabc5fa51c1fae4b66cf883e3a3c2b3ca794494c (diff)
Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device-tree updates, take 2, from Olof Johansson: "This branch contains device-tree updates for the SPEAr platform. They had dependencies on earlier branches from this merge window, which is why they were broken out in a separate branch." * tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: SPEAr3xx: Shirq: Move shirq controller out of plat/ ARM: SPEAr320: DT: Add SPEAr 320 HMI board support ARM: SPEAr3xx: DT: add shirq node for interrupt multiplexor ARM: SPEAr3xx: shirq: simplify and move the shared irq multiplexor to DT ARM: SPEAr1310: Fix AUXDATA for compact flash controller ARM: SPEAr13xx: Remove fields not required for ssp controller ARM: SPEAr1310: Move 1310 specific misc register into machine specific files ARM: SPEAr: DT: Update device nodes ARM: SPEAr: DT: add uart state to fix warning ARM: SPEAr: DT: Modify DT bindings for STMMAC ARM: SPEAr: DT: Fix existing DT support ARM: SPEAr: DT: Update partition info for MTD devices ARM: SPEAr: DT: Update pinctrl list ARM: SPEAr13xx: DT: Add spics gpio controller nodes
Diffstat (limited to 'include')
-rw-r--r--include/linux/irqchip/spear-shirq.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/include/linux/irqchip/spear-shirq.h b/include/linux/irqchip/spear-shirq.h
new file mode 100644
index 000000000000..c8be16d213a3
--- /dev/null
+++ b/include/linux/irqchip/spear-shirq.h
@@ -0,0 +1,64 @@
+/*
+ * SPEAr platform shared irq layer header file
+ *
+ * Copyright (C) 2009-2012 ST Microelectronics
+ * Viresh Kumar <viresh.linux@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __SPEAR_SHIRQ_H
+#define __SPEAR_SHIRQ_H
+
+#include <linux/irq.h>
+#include <linux/types.h>
+
+/*
+ * struct shirq_regs: shared irq register configuration
+ *
+ * enb_reg: enable register offset
+ * reset_to_enb: val 1 indicates, we need to clear bit for enabling interrupt
+ * status_reg: status register offset
+ * status_reg_mask: status register valid mask
+ * clear_reg: clear register offset
+ * reset_to_clear: val 1 indicates, we need to clear bit for clearing interrupt
+ */
+struct shirq_regs {
+ u32 enb_reg;
+ u32 reset_to_enb;
+ u32 status_reg;
+ u32 clear_reg;
+ u32 reset_to_clear;
+};
+
+/*
+ * struct spear_shirq: shared irq structure
+ *
+ * irq: hardware irq number
+ * irq_base: base irq in linux domain
+ * irq_nr: no. of shared interrupts in a particular block
+ * irq_bit_off: starting bit offset in the status register
+ * invalid_irq: irq group is currently disabled
+ * base: base address of shared irq register
+ * regs: register configuration for shared irq block
+ */
+struct spear_shirq {
+ u32 irq;
+ u32 irq_base;
+ u32 irq_nr;
+ u32 irq_bit_off;
+ int invalid_irq;
+ void __iomem *base;
+ struct shirq_regs regs;
+};
+
+int __init spear300_shirq_of_init(struct device_node *np,
+ struct device_node *parent);
+int __init spear310_shirq_of_init(struct device_node *np,
+ struct device_node *parent);
+int __init spear320_shirq_of_init(struct device_node *np,
+ struct device_node *parent);
+
+#endif /* __SPEAR_SHIRQ_H */